I love adjustable gas keys. They are much easier to adjust that adjustable gas blocks. I really like the fact that I can now buy a complete BCG with the adjustable gas keys in either with DLC or NiB coatings. Great products.

Excellent quality , The design is outstanding, fast shipping and made in the USA thank you

Been great and military discount was honored!

Best bcg on the market I recommend to everyone doing a build

Phenomenal. Kept having failure to feed issues from lack of gas blowback. Don't have an adjustable gas block on the set up and didn't feel like tearing it apart to do it. Got the email for this amazing piece of equipment and bought it instantly. Adjusted the gas on the BCG and no issues now. Also way easier to adjust with the BCG than a gas block. Least in my opinion.